46949821 has 4 divisors (see below), whose sum is σ = 47172544. Its totient is φ = 46727100.

The previous prime is 46949813. The next prime is 46949827. The reversal of 46949821 is 12894964.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46949821 - 2³ = 46949813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46949827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111045 + ... + 111466.

It is an arithmetic number, because the mean of its divisors is an integer number (11793136).

Almost surely, 2^46949821 is an apocalyptic number.

It is an amenable number.

46949821 is a deficient number, since it is larger than the sum of its proper divisors (222723).

46949821 is a wasteful number, since it uses less digits than its factorization.

46949821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222722.

The product of its digits is 124416, while the sum is 43.

The square root of 46949821 is about 6851.9939433715. The cubic root of 46949821 is about 360.7541315831.

The spelling of 46949821 in words is "forty-six million, nine hundred forty-nine thousand, eight hundred twenty-one".